Question

what is 3/4 + 2/5 + 3/7 = ?​

Answer 1

Answer:

LCM of 4, 5 and 7 = 140

3/4 = 3/4 × 35/35 = 105/140

2/5 = 2/5 × 28/28 = 56/140

3/7 = 3/7 × 20/20 = 60/140

105 + 56 + 60/140 = 221/140

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